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A new light on the darkest corner of the landscape
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Theoretical Physics.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Theoretical Physics.
2018 (English)In: Article in journal (Refereed) Epub ahead of print
Abstract [en]

otivated by the recently proposed bounds on the slow-roll parameters forscalar potentials arising from string/M-theory compactifications, a.k.a. theRefined de Sitter Swampland conjecture, we explore the sharpness of suchconstraints within 4D supergravities coming from compactifications of massivetype IIA string theory onT6/(Z2×Z2). With the aid of a numerical technique,known as differential evolution, we are able to find a de Sitter extremum whichis fully metastable up to one single flat direction. This solution is supported byspacetime filling sources such as O6 planes and KK monopoles. Our exampleviolates the bound imposed by this conjecture

Place, publisher, year, edition, pages
2018.
National Category
Subatomic Physics
Identifiers
URN: urn:nbn:se:uu:diva-371288OAI: oai:DiVA.org:uu-371288DiVA, id: diva2:1272961
Available from: 2018-12-20 Created: 2018-12-20 Last updated: 2019-04-25Bibliographically approved

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Danielsson, UlfDibitetto, Giuseppe

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